INDEX 



379 



"Philosophy of Nature," 89, 94, 



98, 203, 248 

 Phyletic Series, 359-61 

 Physiology, Separation from Mor- 

 phology, 194, 247, 260, 314 

 Physiology of Development, 315 

 Planula. Theory (Lankester), 295 

 Plato, 15 

 Pockels, 138 



Poecilogeny (Giard), 347-8 

 Poli, 175 

 Polyphyletism 



Darwin, 238 



Von Baer, 242, 356 



Kolliker, Wigand, Naegeli, 356 



Deperet, 360-1 



Steinmann, 360 f.n. 

 Polyzoic Conception of Organism 



Duges, 87 



Perrier, 88 

 Prevost and Dumas, 125 f.n., 134, 



175, 1 86 



Promorphology (Haeckel), 249 

 Protoplasm, 169, 188-9 

 Purkinje, 172, 173, i75> i?6, 189 



QUATREFAGES, A. de, 172, 195-6 



RADL, E., on Goethe, 48 

 Correlation, 240 f.n., 241 

 On Darwin's Critics, 242 f.n. 

 On Cuvier's Critics, 278 f.n. 

 Rathke, H., 133, 136-7, 174, 194, 



269, 351 f.n. 

 Discovery of Gill-slits in Pig 



and Chick, 134 

 Discovery of Gill-slits in Man, 



135 

 Germ-Layer Theory, 136, 208 



Embryological Criterion, 138, 



140-1 

 Homologies of Gill-arches, 139- 



41, 146, 150 

 Development of Skull, 141, 



150-4 

 Vertebral Theory of Skull, 141, 



154-6 



Rathke, H. contd. 



Embryological Archetype, 151, 



153 

 Membrane and Cartilage Bones, 



163, 166 



Rauber, A., 330 

 Reaumur, 22, 315 



Recapitulation Theory. See " De- 

 velopment, Biogenetic Law" 

 Regeneration, 315, 318, 333, 346 

 Regulatory Processes in Develop- 

 ment, 114, 319, 333, 346-7, 350 

 Reichert, C. B., Embryological 

 Criterion, 138-9, 144-7, '63 

 Archetype, 139, 147, 149 

 Homologies of Gill-arches and 



Ear-ossicles, 144-7 

 Vertebral Theory of Skull, 147-9, 



157 



Von Baer's Law, 149-50, 351 f.n. 

 Membrane and Cartilage Bones, 



163, 165, 166, 310 

 Criticism of " Biological 



Atomists,'' 192-3, 194 

 Functional Attitude, 193, 200 

 Remak, R., 118, 288 f.n. 

 On Vertebras, 157 

 Cell Theory, 173, 187-8, 209 

 M icroscopical Technique, 209 f.n. 

 Germ-Layer Theory, 209-12, 296 

 Cells, Tissues and Germ-Layers, 



209-12 



Mesoderm, 209-11 

 Ccelom, 2 1 1,^296 



Repetition of Parts within the 

 Organism, Theory of. See also 

 " Vertebral Theory of Skull " 

 Goethe, 48-9 

 Duges, 87-8 

 Oken, 94-5 



J. F. Meckel, D. A. Meckel, 95 

 Haeckel (Tectology), 249-50 

 Reymond, E. du Bois, 194, 314 

 Rignano, E., 343-4 

 Robinet, 23, 215 

 Rondeletius, 18 

 Rosenhof, Rosel von, 22 



